Lantarnam Hall

Lantarnam Hall is a Tudor Revival hall in Los Altos Hills, California. Built in 1916, it was designed by John H. Powers, and is listed on the U.S. National Register of Historic Places.

Location: Los Altos Hills, California, United States

Verified facts

• Located in Los Altos Hills
  confidence 80/100 · 4 recorded source groups · SRC-2262, SRC-2263, SRC-2265, SRC-2264
• Designed by John H. Powers
  confidence 70/100 · 2 recorded source groups · SRC-2262, SRC-2264
• Built in 1916
  confidence 90/100 · 4 recorded source groups · SRC-2262, SRC-2263, SRC-2264, SRC-6661
• Architectural style: Tudor Revival
  confidence 80/100 · 4 recorded source groups · SRC-2262, SRC-2265, SRC-2263, SRC-2264
• Historic designation: National Register of Historic Places
  confidence 95/100 · 5 recorded source groups · SRC-2263, SRC-2265, SRC-2262, SRC-6744, SRC-6745

Evidence & sources

• SRC-2262 — National Register of Historic Places Inventory–Nomination Form: Lantarnam Hall (Tier 1, official_archive; retrieved June 2026)
• SRC-2263 — Lantarnam Hall — Wikipedia (Tier 3, encyclopedia; retrieved June 2026)
• SRC-2264 — Lantarnam Hall (Morgan Estate) — Clio (Tier 2, institutional_page; retrieved June 2026)
• SRC-2265 — National Register #85003189: Lantarnam Hall — NoeHill Travels in California (Tier 3, reference_site; retrieved June 2026)
• SRC-6661 — Los Altos Town Crier (losaltosonline.com) — historic Morgan Manor (Tier 2, local newspaper of record; retrieved June 2026)
• SRC-6744 — NBC News – Silicon Valley historic home includes a secret room (Tier 1, news article; retrieved June 2026)
• SRC-6745 — National Park Service – NPGallery Asset Detail, Lantarnam Hall (NRIS 85003189) (Tier 1, official register record; retrieved June 2026)

How we verify

The entries above show the sources and confidence scores recorded in our fact ledger.
Source tiers are internal classifications, not guarantees of accuracy or independence.
Several sources may repeat the same underlying account; a source count alone does not establish independent corroboration. We show the
street address only for non-residential public landmarks (museums, commercial and civic buildings,
publicly documented filming-location sites); the exact addresses of private residences and any
personal information are structurally barred from publication. Last reviewed June 2026.